Friday-Morning Roundup

Construction of the new W.T.C. at ground zero began … yesterday. A 168-foot-long gentle S curve, anyway, that curves through the south tower footprint, says The Times. It's from yesterday, but this article on proposed federal tax changes should give new homeowners the chills. Also in The Times, a rundown of the Mayor's affordable-housing record. Speaking of the Mayor, the Post reports that he wants Governors Island to be developed into a public-health research center. The Ground Zero Small Business Association, representing 140 businesses and 700 workers, is struggling to get a fairer deal from the M.T.A. for its members' displacement by the Fulton Street Transit Center, says The Sun. -Matthew Grace